Abstract
The core of many video coding standards is formed by the Discrete Cosine Transform (DCT) for de-correlating spatial video data. When quantizing DCT sub-bands, artifacts may appear such as mosquito noise and ringing. Spatial artifact reduction requires artifact location information, to control the filter process, thereby avoiding unnecessary blurring of artifact-free regions. This location information can be derived, either in the time- or frequency domain. As coding artifacts are most annoying in flat or low-frequency regions, the objective of the detector is to localize these artifact-sensitive locations. The detection accuracy, coverage and sensitivity differ between the two possible detection domains. The time-domain solution has a 10-97% location detection performance, whereas the frequency domain results in 70-100% detection performance.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the Iiternational conference on consumer electronics 2013, (ICCE 2013), 11-14 January, 2013, Las Vegas, Nevada |
| Place of Publication | Piscataway |
| Publisher | Institute of Electrical and Electronics Engineers |
| Pages | 112-113 |
| ISBN (Print) | 978-1-4673-1362-9 |
| DOIs | |
| Publication status | Published - 2013 |
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